The Fisher XLT-30 uses a powerful, solid-state amplifier and ultra-sensitive probes to detect leak sounds -- even in poor sound conductors, such as PVC and cement pipe, under all types of earth and pavement and even in water-filled cavities. For concrete floors, the "Big Foot Probe" acts like a giant stethoscope to identify hidden leak sounds. When the pipe is accessable or located beneath the earth, the Hydrophonic Cylinder Probe with an adjustable-length sound rod detects the leak sounds.

• Detects all types of liquid leaks
• "Big Foot" probe for sensing through concrete and asphalt
• Cylinder probe for direct pipe contactand over open ground using steel rods
• Hard case included